Hatch-opener.



G. MAZZOLINI.

HATCH OPENER. APPLIQA'rIoNrILnD JUNE5,19'os.

989,988. Patented Apr.18,1'91.1. 1

. INVENToR gl l ton rod of which by its movement in one di- 40 and itsclosing device, the cylinder being GIUSEPPE MAZZOLINI, OF ROME, ITALY.

HATCH-OPENER.

Specification of Letters Patent.

Patented Apr. 18, 1911.

Application led .Tune 5, 1908. Serial No. 436,973.

` cation.

The object of the present invention is a device for hermetically closingfrom a distance openings in the walls of ships, such as hatches, doorsand windows.

The device includes a closing means intended to cover the opening to beclosed and which will hereafter be designated by the general term ofpanel; this panel which is provided with a frame the movable sides ofywhich can be pressed beyond the edges ofthe A. panel and be drawn backwithin these edges,

is combined with a piston adapted to be operated by fluid underpressure, the pisrection'moves the panel before the opening to beclosed, then presses this panel against the edges of the opening, andfinally acts upon the sides of the frame pushing them beyond the edgesof the panel, in order to press them (the sides of the frame) againstthe j walls framing the opening to be closed by the edges of the panel,so as to produce hermetic closing of the opening. By its movement in theother direction, the piston rod i Vcauses the withdrawal of the sides ofthe 'i way of illustrating the manner of carrying out the object of theinvention, a device for closing a hatchway.

Figure 1 is a plan View of the hatchway shown in longitudinal section.Fig. 2 is a section through the line A B of Fig. 1 with the closingdevice in sight. Fig. 3 represents a plan View the frame of the panel ona larger scale. Fig. 4 is a detail, of the frame on a'larger scale.Figs. 5 and 6 are partial sectional views of the closing device showingthe panel in two diiferent positions. Fig. 7 shows a detail partly inelevation and partly in section through the line C D of Fig. 5. Fig. 8is a transverse section of the panel and the guides therefor.

luis the opening to be closed,such as ahatchway, and 2*L the panelintended to cover this opening; this panel 2aruns in the guides 19 whichgrasp the panel on two opposite edges (Figs. 1 and 8). In the portion ofthe guides which are situated opposite the opening 1, the flangesthereof facing the opening are discontinued (Fig. 2) so as to permit ofpressing the panel against the edges of the opening when once it hasbeen carried in front of the same.

Within the panel is set a frame Separately shown in Fig. 3; the sides a,b, c, l of which are movable in such a manner that they can be pushedbeyond the edges of the panel 2, that is to say so as to project beyondthese edges as is shown in Fig. 6, and be drawn back from these edges(Fig. 5). The side .A of the frame is rigid with a rod l having in itsmiddle part notches 6 and 7 one of the edges of each of which issloping; at its extremity the rod bears an articulated hook 8. The sidesand (l adjacent to the side a are rigid with the posts 2 and 3 the feetof which engage with the notches 6 and 7, these feet presenting aslanting edge corresponding to the sloping edges of the notches; therods 4 and 5 are articulated on one end with the rod 1 `and on the otherend with the posts 2 and 3, while other rods 30 and 31 are ar ticulatedat one end with the posts 2 and 3 and at the other end with the posts 40and 41 rigid with the side c; the extremities of these posts 40 and 41engage with notches in the posts 2 and 3; these extremities and thesenotches have, the same as posts 2 and 3 and notches 6 and 7,corresponding sloping and slanting edges. Rods 34 and 35 rigid with therod 1 engage at their extremities in the notches of the rods 2 and 3,which notches have sloping edges to which are applied the extremities ofthe rods 34 and 35, in a similar manner the extremities of rods 37 and38 rigid with the posts 2 and 3 engage in the notches 38 and 39 providedin the posts 40 and 41. By pushing the rod 1 from right to left (Fig. 3)the side a and simultaneously the other sides b, c and d are movedoutward, the rod 1 acting on the posts 2 and 3 of the sides Y) and l bythe rods 4 and 5, and on the extremities of these posts by the slopingedges of the notches 6 and 7, while the posts 2 and 3 for their partacting on the posts 40 and 41 of the side o through the rods 30 and 31and on the extremities of these posts through the sloping edges of thenotches, which these extremities engage. By pulling the rod 1 from leftto right, the sides b,0and cl are simultaneously with the side a,brought back by the tractive action of the rods 4, 5, 30 and 31 on theposts 2, 3, 40 and 41, and the pressure of the extremities of the rods34, 35, 36 and 37 on the sloping sides of the notches of the posts 4, 5,30 and 31, in which these extremities engage. (See Fig. 4.)

The corners of the frame a, c, and al are fitted with triangular caps32, which are impelled forward by the sides a, Z9, 0, and al when thelatte-r are moved outward and are drawn back with the sides of the frameby the action of these sides on the gudgeons 33. To the panel 2a isaffixed a button 11 which engages in a slit 11a of a metallic strip 12,fastened to a wedge 13 secured to the extremity of the piston rod 10which is operated by fluid under tension. On the sides of this wedge 13are arranged sloping grooves 22 in which engage the hooks 21 attached tothe panel 2a (Fig. 7). A toothed hook 23 is attached to the wedge 13.

Communicating with the ends of the cylinder 27 are conduits 2G and 28for the admission of the fluid under pressure, and also communicatingwith the ends of the cylinder are conduits 26a and 2S2L for the exhaustof the fluid.

To close the hatchway the fluid under pressure is allowed to enter thecylinder-27 through the conduit 26. The piston together with its rodwill be pushed toward the left (Fig. 1) and the wedge 13 secured to thepiston rod 10, by acting on the panel 2a, which is prevented by theguides 19, from moving in a direction perpendicular to the guides, willpush this panel before it, and will finally place it in front of theopening 1a (its position in Fig. 5) in that part where the guides of thepanel are eliminated on the side toward the opening; the pistoncontinuing to advance, the panel can then move under the action of thewedge 13 in a direction perpendicular to the guides and will be pressedagainst the edges of the opening 1a (Fig. 6) during this movement thehook 8 enters into engagement with the hook 9, the tooth 23 of which,during the last part of the movement of the wedge 13, by its action onthe hook 8, will push before it the rod 1, as the result of which therewill be an outward movement of the sides a, b, c and d of the frame. Byreason of this movement the sides a, b, c and CZ which were within theedges of the panel (Fig. 5) are pushed beyond these edges and pressedagainst the walls 24aL inclosing the opening 1a, opposite the edges ofthe panel. In order to Vassure a perfectly hermetic closing, grooves 24are provided in these walls into which grooves the sides b, c and denter in y their outward movement or expansion.

is a movement of the piston and its rod` from left to right (Fig. 1).During the first part of this movement the hook 9 by its action on thehook 8 with which it engages,

the first part of the movement of the wedge 13 from left to right, thesame as in the corresponding part at the end of the movement of thewedge from right to left, has played freely from one extremity to theother of the slot. During the subsequent movement of the piston, themetal strip 12 will, by means of the button 11, exert a pull on thepanel and will draw it from in front of the opening 1fL into theposition shown in Fig. 1.

Having now fully described my said in` vention and the manner in whichthe same is to be performed, what l claim and desire to protect byLetters Patent of the United States, is:

1. ln a device of the class described, in combination, a panel adaptedto close an opening, an extensible frame associated with said panel, acylinder, a piston therein-provided with a piston rod operativelyconnected to said panel, the outer end of said piston rod being providedwith a wedgeshaped member having inclined grooves formed therein andhooks operatively connected to said panel and engaging said grooveswhereby the panel will be moved into and out of the opening to close oropen the same.

2. 1n a device of the class described, in combination, a panel adaptedto close an opening, an extensible frame associated with said panel andcomprising a rod, a jointed hinge attached t-o said rod at its rear end,

a cylinder, a piston provided with a pistony rod and a hook secured tothe outer end` of said piston rod for coacting with said jointed hoolrto expand and contract said expansible frame.

3. ln a device of the class described, in

combination, a panel adapted to close an opening, an expansible frameassociated with said panel, said frame having a plurality of sidemembers adapted to be moved beyond the edges of said panel, a rodprovided with notches secured to one of said side members for moving thesame, one of the walls of each of said notches being inclined, rodssecured to others of said side members and provided with surfacesengaging the inclined walls of the notches in said first-mentioned rod,whereby said other side members will be displaced upon movement of saidfirst-mentioned rod.

4. In a device of the class described, in combination, a panel adaptedto close an opening, a button secured thereto, a cylinder, a pistontherein and provided with a piston rod, a wedge-shaped member secured tothe outer end of said piston rod and 0peratively associated with saidpanel to actuate the same and a strip having one end secured to saidwedge-shaped member and having a slot formed in its outer end withinwhich slot said button is adapted to engage.

5. In a device of the class described, in combination, a panel adaptedto close an opening, an extensible frame associated with said panel andadapted to be extended beyond the edges thereof whereby it will engagethe walls of the opening to effect a tight closure, and means for movingsaid panel to close said opening and extending said frame.

6. In a device of the class described, in combination, a panel adaptedto close an opening, an extensible frame associated with i said paneland adapted to be extended beyond the edges thereof whereby it willengage the walls of the opening to effect a tight closure, and means forsuccessively moving said panel into registry with the opening, causingsaid panel to close the opening and finally extending said frame toengage the walls of the opening.

7. In a device of the class described, in combination, a panel adaptedto close an opening, an extensible frame associated with said panel andadapted to be extended beyond the edges thereof whereby it will cngagethe walls of the opening to effect a tight closure, and means forsuccessively moving said panel into registry with the opening, causingsaid panel to close the opening and finally extending said panel toengage the walls of the opening, said means comprising a wedge engagingsaid panel and adapted to move relatively thereto and provided withgrooves, and members secured to said panel and engaging said grooves.

8. In a device of the class described, in combination, a panel adaptedto close' an opening, an extensible frame associated with said panel andadapted to be extended beyond the edges thereof whereby it will engagethe walls of the opening to effect a tight closure, and means forsuccessively moving said panel into registry with the opening, cansinosaid panel to close the opening and iinjlly extending said frame toengage the walls of the opening, said means comprising a member providedwith a slot and a member secured to said panel and engaging with saidslot.

i). In a device of the class described, in combination, a panel adaptedto close an opening, an extensible frame associated with said panel,said frame having a plurality of side members adapted to be moyed beyondthe edges of said panel, a rod secured to one of said side members formoving the same, means operatively associated with said rod for movingthe other side member and means adapted to move said rod to extend orretract said frame.

In testimony whereof I have aiiixed my signature in presence of twowitnesses.

GIUSEPPE MAZZOLINI.

Witnesses:

TOMMASO BARBOLUTZ, A.v Buzzi.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

